The 1998 Spurs, with a Tim Duncan who had four years of college under his belt, along with David Robinson, lost both times they played Jordan's Bulls in 1998. Those same Spurs won 56 games that year.
Tim Duncan and David Robinson represented 14 feet in height and 500lbs in weight. Since you caught up in size and weight. Jordan's Bulls would have adapted to any era.
Duncan and Robinson's weight isn't relevant because they weren't matching up with Mike. Payton being 180 matters in the discussion because he was the guy assigned to Jordan the last 3 games of the finals. You can't ask a guy who's 6'4 and weighs 180 to check a guy who's 6'8 and plays between 250-270, and since the bulls never met the spurs never in a best of seven series, the result of two random games over the course of an 82 game season don't mean much. As for adapting for any era, it's a safe assumption that they'd have contended for titles in the 70's and 80's, but we don't know how a team that didn't shoot the 3 would fare in today's NBA where it's a prerequisite. Here's their attempts per game and percentage from distance during each championship year. An asterisk denotes the three point line being shorter that season.
1990-91: 36.6% while taking 5.2 attempts per game as a team. 3 players averaged over 1 attempt per game and the leader in attempts was taking 1.6 per game.
1991-92: 30.4% while taking 5.5 attempts per game. 3 players averaged over 1 attempt per game and the team leader took 1.7 per game.
1992-93: 36.5% at 8.2 attempts per game. 4 players averaged over 1 attempt per game, with 1 attempting 1.9 shots and another attempting 2.9 shots from deep per game.
1995-96*: 40.3% shooting at 16.5 attempts. 4 players on the team were taking 2.7 shots or more per game with the team leader attempting 5.2. Second on the team was 3.2.
1996-97*: 37.3% on 17.1 attempts per game. Five players averaged 2.5 attempts or more and 2 averaged above 3 attempts.
1997-98: 32.3% on 11.2 attempts per game. Five players averaged 1.5 attempts per game. The team leader in attempts took 4.4 per game while shooting 31.8% from distance.
Judging by these numbers, we have no idea how the bulls would play in the post zone NBA. We don't know if they would dominate the same way, because their entire offensive sets would need to change to keep pace with the evolutionary changes the rest of the league has undergone. All we really know is that they'd have to drastically alter their offensive sets or they would face a lot of zone defenses and a clogged interior. The bulls made 5, 25, and 32 threes in the 1991-93 finals. They made 36, 39, and 26 of them in the 1996-98 finals. 1991 went five games and the other 5 finals went 6 games. For comparison, the heat made 42 of them in the 2012 finals (5 games), and 64 of them in 2013 (7 games). In 2014, the spurs made 55 of them (5 games). The warriors hit 67 of them in 2015 (6 games). The cavaliers hit 56 of them last year (7 games).